Ok, so when it says beg of next 2 rows, does that mean they're counting each set of shoulder stitches as a row? And also, when it says "ending with a WS wrong" does that mean that last row you knit is a WS row?

Yes to the 2nd question, kinda yes to the first one. You BO one shoulder, then skip over to the other one and work that row to the outer edge as the continuation of that `row'. Then turn and BO that shoulder.